Igniter



tributor arm 19 so that the distributor arrr is supported by the cam in a manner such that the cam and distributor arm rotate together but Vat the same time the distributor arm can be slipped o of the cam when desired. The cam may, if desired, be pinned or otherwise fixed to the upper end of the shaft, as is the case When the automatic spark advance is obtained solely by the lateral movement of the slide carrying the circuit breaker, but in tlielpferigedggribodiment of th'ei'invention theau"toiiatiti 'sparkadvance :is`v obtained marized as consisting in certain novelfdetai'lsi movements being` imparted of construction and combinations and ar- -multaneou'slyby the governor to be referred to. In the latter rangements of parts which Will be deserile'fl'event, and as here illustrated, the cam does in the specification and yset forth in the appended claims.

'sha

, the aceeulpellyieg t Sheet o @Wiege wherein the' 'pfeferredemboaiment is niag- At the to'p 'of the lhousing :11 `but,

be connected toftlie'spark plug's'thereof, and it isgprQYdedvith @Central terminal 1'6 which is Tusually yconnected tothel secondary a `=distributoraifm 19 "which` is rotated :the

eea10ad-is amori-@iin a ,einen the 'distributor arrn 1:9, is'rotatedv b not have a fixed position on the shaft but is drivehfbythe latterthrough a connection, to be einleef, .ivbieb will turn the Cam Slightly on tli' shaftga's thef'sneed of .thezengine and haftIQ'varies t martha-the?@amwiilhayefsthy sofcalledl points' as there are cylinders 'ofthe engine, gvvith" vvhicli: thefigniter fis' fan @taint-@mtiers agenti-Sien tra insulated stantially equal distances from the1V pivotai aXisff thlve. 'lhis'novel Iforn'Yof-the lever fils: rir'able hasthelad-vantagef that'the "Wear-fon' 'one part, i. e1, on the' contaet or rub- AVbinfg -block 'ivi lhave 'lessefect on 'Y the other 'part thawoildb'e the'case if these parts Wer-e *materially diifererrtdistances' -froinfthe pivot 47jal axis 'ofthe lever .as in conventional designs lwherein.afstraightllever pivoted at one endris i v z 120 n L Ther breakenlever .21 isengaged by aspring 26 which tandem-keep theentactsfin engagement and; doses the, breeker effen @eeh ,Open- 'wmrmwnpartlyby moving the slide laterally and partiria ,operutontbv the wmf This ASprirlig is preferably the -forni lof aflatleaf 'spring v 4fq'r'niefd and niourited;l 'one' fendi of the? spring jrbein'g 1,. attached to l thev lever, at 2,7

ion

iim 5 ing @ros

Honsngfbt rin aceordane'with; the fpresent nivehtion both' the breaker. fle'ver '21,l Vandthe Contact 251are mountedo'n afmovable support, ini fthis' instance in 'the form4v lof' av slide 28,- which ismounted inl a guideway" for lateral sliding' Iorlinear movementf 'atv right' 'angles to the cam axis so that the inner-endorcam# engaging portion foftlie, rubb'in'g gblockl23 f will bef moved in' Aa straight line lsubstantiallytanentially-'oftheA cam' when the slide-is moved laterally byl the 1 governor? UAccordin ly,"ftlie pin 22 which pivotally SuppOrtsthe` reaker leveri 2lL islxed to and 'extendsfu'p' from the slide28 and the contact=`25isinfthis instance', mounted yupon, theA innerfe'nd 'of falscrew-29 extending through f and ladj ustably fmounted lipfO which isstruck up ffromf'theslide. lllh'eg contact land.'l screwf ca'n :be :held lin f any y adjusted po'sitionzby` alockfnut, Vsuch as illustrated, or other suitable means; i, lv-flhe slide-28 is slid'nglyxsupportedon fa supporty-in thisinstance in. the .form of '-a partition 31' extending: across the fhousing 1:11, 'and-.secured to thisapartition and extending overithef slide is .a Atop plate 32having a pair of parallel shoulders-SQ-awhich form guides for 'theg opposite parallel edges f of. the slide, this top lplatefbeingicut awayiso-as to provide a-icle'jarance fortheparts ofthe breaker which project therethroughK as illustrated inFig. S, The, slidelitself has -aV cutaway portion 28a in the form of a U to provide a clearance-between; the;` slidel and; the foam and other parts so that f the; ,latteri will not Ainterfere with the movement ofA ,the slide.V ff: .aww :D n;

;One',end of the `springl26, as 4clearly stated', is' attached `to lthegibreaker; lever Ecarried by the llaterally. movable slide i285. but the :eppoi siteendtrof;A the springis anchored on ornat- 't'ached to a' stationary part :byf means tof. a screw 33. This stationary 'part towhichthe iixed end of the' spring. is4 attachedis, in' lthis instance, an extension 34 of an`insulating case .35y for a ycondenser 36, Whichis preferably employedftobridge the contacts of the break- -er,.fso as vto 'minimizes'parking 4 at the cou- `tacrts.w'llhis condenser, and itsV housing are attached by av screw'? -tothe bottom of Ia .trough-'like,depression in the partition memvber y 3l, .the icondenser extending up freely ,through the U-shaped slot 28a infthe' slide .shown in Fig. 5. It will be obvious that since one4 end ofthe spring is attached tolthe laterally movable breaker lever ,and the other to a fixed point, the tension of the spring and ,therefore'ithe `force which it exerts onthe 1ever are .increased as the slide moves laterally E outward, Y, lthe advantage of .which will l beexfplained more -fully -latenv-d- I prefer' to lprovidebetweenthe ends of the spring a loop 1264;,asf1 that: by theprovision of such .aglooplthere littlexlikelihood ofthe spring ibakiilgfby-theenstaet Changing. ofthe ten- Sonbejr-vieerhe xed and movable/,ends of batteusesthe slide-i-Qnevesiinand out aishortdistance fromllthe1point off attach ment Iv'with the breaker :leverbut with the loop provided inthe straightportion ofthe spring, the" life ofthevspring vis iindeiinite",a'since. the loop `yields isomew'hat-1 andffallow'sth'e:spring t lengthen slightly as other slide.,-movesfout wards-'fand prevents 1to0 great "ea` istressfbeing imposed,` onf-the" curved? parti which -eiitehds part' avayf around the i breaker. vileveri-r-fllhe spring261isfas beorestated, a- Hatlleafspring fore tempering the holes zare ,punched =in1O its ends? and it' is xgiven the desiredishapgl ;ncludingzthe straight s portion .1 with ithelodp; and with the cur-vedi portionl orv return bend Where iti passes around and islattachedfto theecie cuit 4breaker vlever and lit fis; .then-tempered whileheld in thatshapei-Before the spring isfapplied vit xis substantially ofetheffshcape s hofwn inthei drawing' except that theau'rived partadyacentt the end fwhichisla'daptedrto be attachedito the lever isslightl'ymore Open; a Beforepas'sing tothe automaticibontrolaof the slide i :or A of both thef :slidef an-df zam', it might be, mentioned that; :a terminalr -s'tiipj is l preferably 'embedded infthecondensert case 35 and its extension 34, one end of this strip extending outwardly lfrom L the iigniterj housingandhajvinga terminal scievvzor binding post 39 ,for vattachmentvtoeme-primaryott the ignition `col'. f This lterminal stnipfV i entends 'overl-toi and: is ielectri'callyff connectedato'the breaker spring' 26, which ,carries theV primary -ci'iirent` t0 ythe linsulatedfloreaker;4ever, ithe 'Stationary Contact. of itheffibreakecbeng grounded. yOne side 'Lof rthe; Qojridenser 36 ,is connectedf-alsofto the terminal striplythe other side of the condenser',-being' connected to ground by, a conductor;40.1., i

`laking up; now thea utom willbeiobserved that Igprovidein f-theflgwer compartment 41, formed between thegbasefof vthe housing l1 and the partition 3l -V-acentrif ugal y governor consisting of a: gQVenor-body .42, pinned or otherwise securedto; tlfeshaft .10 anda pair ofweighted armsj-43; connected attheirflower ends bfyfpins 44 in bifurcations ofthe lower partof the-governor. body. The weights or weighted 'arms' -43h'ave'Y atftheir lower ends inwardly extending arins=45 which engage-fthe ,lower ends of a :pairlfofpins-AG slidable vertically in thev governor body42, which pins have reduced upper ends attached to 'avflrange 47 of a sleeve 48 vhich'surrounds the shaft Y and yL is g slidable vertically thereon.

als

It isgtol be understood that; the( governor", fthe @25 pins 46 and the sleeve 48 rotatefwith thezshaft andasthe-l governor weights movevoutwardly, .thepins 46 andthe sleeve48 moverupvvardly. .This upward movement'Qfisleeve14d-istrans-y :migtedffpyfmeans Magistrat-@f aangaat@ a 80 nonfiotating4 sleeve. ;50. i wliieli'. surrounds i the sleevielS-and extendslup thronghthe -basepf the'ztroug'hlike. depression Sllof theapartifV tion 81; willibe:observedbylreferenoe to Figjfi; the sleeve .50;is;noneirc11la1= inisliape andi aeiitends g through@arreorrespondiiigly shaped opening. lin( :thefbasegofsthe trough-i-n the partitions'o,thatt t`his a sleeve, while -it? will be elevated.: .byLtlielnpwardemovement of ,fthe innerzsleevetlS and Aof ;th er 49 it;;:wfi1l be lieldf' *from rotationzg f-.Theflange i. of .sleeve A58 a'ndithe ndof fsleev 1,50 f are fproividednwitli rabe-way; groovesffwhichi receive i the a .ballsi :50 the-:latter heing v.spaced'iapart hyd a; balli 1re-V tainer '.orspaoer 'such as l commonly Iemployed ini' annularxball ybearings'. mgl-f eff' TheiupwvardL-movementioffth sleeve 50m11- partebfbyu the -,-'g0vernor=l weightssisz trans? witted:I to: I:the slide' 38 1 by a i bellecrank lever pivoted on au'pin 551:.'extending-` between lthe sidesjoffthe'trough 3'1a,zthis ybell-Crank having two' farrnsY 52 which straddle the lshaft and engage fthe ztopiofifthesleeve 50 as best-"shown in Figs-sl* andlqgan'd having Eanfupstanding arm which extfendsup freely-thronghthe slide 28. and tlrough the cover plate 32 and engages the: inn'er end .'ofian adjustahlelsoew 54 mounted iin an" upturned lip 55 of'ftheslid'e 28.1g1hisrsorewl may *be adjusted 11and..1by :nieansof-laflock nut secured "in adljufste posi'- OD; 'i',- lili^j: z-f: i" 'f l.: a3.. v1.12 Thef -outward :movementi ofil thezigovernor weights and `the` outward laterali movement of theis'lid'ef28' areyieldingly resisted prigmarilybyione or :morefspr-ings '56,fa series''of springs fflieingjfhere 1 shown .in= the@ form fof punchings'; these lsprings y -being "arc'ishap'ed and at 'their f free 'ends adapted 5to engage 'the 'head'1 of? the screw'rll7 as shownin s-1f and v3, the-opposi'te= ends of the springs;` eingse- Cured-fito; the partition 31 and cover; plate 32 byloneor more'ser`ewsi57-l Fairly stiii' springs are required* t'o estrain the i`outward smove'ment f "off the g'governor weights? Vafter ia' 'Cert'ain speedfis re'elie'd and after i the weights have moved outwardly some distancev from their innermost'p'ositin against the" governor fbody illustratedin Fig. j-LbutI ind that springs of ar'stifness suitable for high andy moderately high speeds of op- ',eration' are notv suitable forl comparatively 4low speeds.- Therefore,` `I 'so '-moiintfftlie Vsprings 56 thatV ywhenthe engine is stationary, -the'free ends'ofthe springs -do not enga'gefthe head 4'oft-he 'screw 54: and for' the lowen'g-ine speeds, 'I rely' upon' the breaker springs"` 2 6; to restrain the `voutward movement "o' f the Lweightsyvga'ry little spring action their,beingr required. Thus this spring 26 not onlyfclos'es -the nbreaker".but inasmuch Fais' oneend` ofi tliis 'sp1-ing` is "anchored `'on"tl1eV s't'a'ti'onar'f5t lpart while the "other is l'Connected to the' laterally `movable fbreakeri lever,- at :the slower-v engi-ne speeds arid until' thelgovernor weights move .outwardly-'a cert'ain =amount5th1is`sprin"gf 26 that which-:is ,attainablefbyi movement of the eireuitbreaken laterallyby-.means of the'gowa erfnoriifilnf thatevnnthe governoris utilized to-eauseadditionalspark,advance by turning the cani on ther shaft as well as; n ioving;v gthe plished byproviding-:inthe upper partgoffthe sleeve ?48, which the governor elevatesgspial slots;` 58e, which slotsareen'gaged'by the inner A ends of pins 59 carriedflasliirt 'or .down- )f wardly;extending'fflange- 60 formed. on the bottom off the cam 20.-; f consequence,.-since the cam; is held from moving upwaidlyoiitthe sliaftgtlie` upwardj movement of the: sleeve 48 causes -A- tlifrou'ghf-l theE .instrumentality fof lthe ,v ;I

spiraly slots 58-and pins 59,the icainito be turned fonthe-:shaftV to an extent dependingr upon-- f thei speed: of. the engine; They incre'L men;1 vof: spark advance obtained. tin this :ashe ion,-

be'g-controlledzby thefdegree of' inelinationi of the Sl0tsr58- a "r (if. fifi 1;. FIL desired,` provision 'may'y be made'.y for fre# ,ta'rdiii'g or advancing the spark manuallj fin ing 11 relativetd the Yshaft and tothe'feam and distributori armivvhich 'it Carries?4 For -this purpose-,51T showfattaehed t0 V the bearing sleeve just :beneath thehousing llf an iarm -62 one'isfdesiredgirmaybe made.

The operationothe'igniter is as follows: Whenfth enginefis stationary the' parts ocveupytheg relative-fV positions shown' the drawing with the'weights inward against the vgovernor body' and the Islide 'in its innermost fpositiongsthe rubbing block then oecupyi-ng .the-position with reference' to the Veainl 'axis substantially asvshownA in Fig.' 3. {Wh'en'the enginefis startedland itsfspeed inreases,the i' 5 4iiv-eizgfhts"move outwardly and the slide 28` ear- Tying 'the :breaker begins to 'move outward, the rstoutward inovementbeing opposed bl 4the-spring =26 and afterwards hv :both 'the 'springiQG-and `theirelatively stiiffsprin'gs 5 6.

nThis Ylateral#movement of 'the slide moves themubbing bloc'lrof Vthe breakei'f'levr iii a straight line vsubstantially tangentially of .the -eann the' efeot `beingto Cause an earlierlsepa'- ration-ofi the ebntaets, i. e.; JLan advance in the rtnne of lgnitionandf also aquieke' dosing-of fthei eontats" since 'theyl zarev heldv sep arat'ed by the amifor afsmallerangular-movement 'than rfa' g'iveninereaseiin. engine speed may the pesieonk'ruativetoeh eamfsiiovvfilii Fig. im

any of the usual ways as by turningthelious- *Tl-i5 byfwhioh the fmanual'lspark adjustment/5 "if .195

githat'is to say the effect in each cycle of operation is to increase the period of closure ofi-thecircuit breaker relative tothe period that they are separated in degrees of angular movement of the cam. Theresult is that at the higher speeds of' engine operation the dwell'is long enough to enable the current to buildup' in the primary of the ignition coil and throughout the range ofspeed of the engine'the ignition apparatus will draw about the same amount of current from the battery orothe'r source, and as hot a spark is produced at high, speeds as at low speeds of engine operation. Furthermore, the increase in the closure periodjrelative to the open period in degrees of cam movement is enhanced by reason of the fact that at high speeds the rubbing block is moved outwardly a less distance than at low speeds, and also because of the fact that the breaker spring 26 is under greater tension at high speeds than at low speeds, thus successfully overcoming the tendency heretofore existing for the rubbing block to be thrown outwardly a greater distance at high speeds than at low speeds.

The spark advance obtained by the lateral movement of the slide may be used alone without any additional automatic spark-advancing means. The additional spark advance, if any is desired, may be obtained manually, but as pointed out above if it is desired that the full range of spark advance be obtained automatically this can be accom-V plished by having the governor, by the means such as herein illustrated or equivalent means,y

act on the cam to advance it on the shaft at the same time that the governor moves the slide and circuit breaker laterally to give a certain degree of spark advance as well as increased contact dwell.

It will be seen, therefore, that automatic spark advance may be obtained along with increased contact dwell solely by the lateral movement of the circuit breaker and of the slide supporting it or jointly by that method and by the rotation of the cam on the shaft, and I, therefore, do not wish to be confined in my claims to the use of both methods, although both are desirable in some instances.

Likewise, I do not wish to be confined to the specific means herein disclosed for transmitting movement from the governor to the slide' carrying the breaker', although the mechamsm herein illustrated is preferred since practice has demonstrated that it is very ef fective, in the way of accuracy, long life and general dependability.

Having thus described my invention, I claim:

l. An igniter comprising a rotary element having a cam, a circuit breaker composed of a pair of contact members one adapted to be operated by the cam and a common support for the two elements of the breaker movable bodily in a lateral direction.

2. An igniter comprising a rotary element having a cam and a circuit breaker adapted to be operated by the cam and a movable support for the breaker by which the cam engaging portion ofthe breaker may be moved laterally in a straight line.

3. In an igniter arotary element having a cam, a circuit breaker adapted to be operated thereby and a laterally movable slide on which the circuit breaker is mounted.

4. In an igniter a rotary element having a cam,'a circuit breaker including a breaker lever adapted to be shiitedbv the cam, and centrfugally operated meansI 'for moving the cam engaging portion of the lever in a straight line substantially tangentially of the cam.-.

. 5.V In an igniter a rotary element having a cam, a circuit breaker adapted to=be -operated by the cam and having a movable .support, and speedresponsive means for automatically shifting the support so that the cam engaging portion of the breaker -moves laterally in a straight line.y

6. In an igniter a rotary element having a cam, a circuit breaker having a lever adapted to be rocked bythe cam, la slide on which the lever is mounted and centrifugally operated means for moving the slidesothatfthe cam engaging portion of the lever isgiven a lateral linear movement. a

7. An igniter comprising a rotary element having a cam, a circuit breaker including a member adapted to be operated by the cam, a movable support for said breaker member mounted for straight'line movement, and a spring-serving to close the breaker and anchored on a stationary part.`

8. Anv igniter comprising a rotary element havinga cam, a circuit breaker yadapted to be operated thereby, a slide carrying the breaker mounted for straight line movement, and a spring connected to the movable member ofthe breaker and anchored on a stationary part.

9. An igniter comprising a rotary element having a cam, a circuit breaker having a lever adapted to be operated by the cam, a movable support for the lever, and a flat spring connected at one end to the lever and at its other end to a stationary part and having two portions which are in substantial alignment and connected by a portion which will permit the spring to yield lengthwise.

l0. An igniter comprising a rotary element having a cam, a circuit breaker adapted to be operated by the cam, a movable support for the breaker, and a leaf breaker spring connected at one end to the breaker lever and at its other end to a stationary'part and pro vided with a substantially straight portion having ybetween its ends a loop.

11. An igniter comprising a rotary element comprising a cam, a circuit breaker with a lever adapted to be operated by the cam, the

st'raigllt portion and c lever having a 'mpv/Table.: support-:and fa .ilat lrreaker"spring` attached to one 1 end toga vSta-' tionary:Y f part and at :rits i l otlier-l-:endqtoffzthe breakerleverland lliav'n'gr-fag substantially ed portion :andin ortion'having a the substantially straig loop' whereby; theys wiseas the breakersuppor l12'; an".` igniter ai rot a cam', -awoirouit breaker, fa ,g A taining autolnationsparkgfadvance anda' b spring 'Whieh; Serves ytozolos 'theooontaotsfof the breakeriand L' also'as' a governor v13. An oi'gniterf ornprising ajot ment having-a cam,V cirouitrbreaker adap to be Y, operated'fbytlie 1 cam; a niovableigiern ber carrying the breaker, centrifuga 'means connecteds ato; a saidfivmeinberf Farid i' which inetione tfbotli .fclos'etlie;con actezp therbreakerand tjqyieldinglyrresistfi heia'ctin of vthe centrifugalaneans "onthe sai movable .v

member: @if

` tary elementfand ving to `move th canijand Y breakerurelatively ,-o 1 :obtain ali `'aito atie :fadva ce a shifting the snpportjfsoas :to movelth cam engaging portionfof the zbreakerqlaterally; a spring for velosi'ngfzthecontacts ofthe: breaker an'd for -opposirfgjtlieoutvvardrovement of the support` .and tlieixoutw'ard imovemerit :of the governorL weight: or. Weights;qandifaifrlaf` tivelyy sti-ff governorl springwhicl comes l into action when a certain speed is reachedl ,at` il 16. In` an -igniterr a rotary elementi 'having al cani, V-ay circuit, breakery having ya fmovable supportl adapted --whenshiftedI :tof vniove the Cain engaging portionfof thebreaker laterally andy l speed responsive; means" Aconnected both to ea'id support-,wandte the-cani'. l' '1 f r:17. In-V an igniter a-rotary shaft'having a oarn'and a breakerI with a laterallyfmovable cani engaging portion, and la governor which serves to givel automatica-spark advancev by moving both-they Cain and-Shaftv relatively 'and the Cain and carnengaging po'rtiorr of the breaker relatively. f A

\ 18. In an ignitfer'a rotary shaft having a cam, a circuit breaker adapted'to be operated thereby, a' laterally movable slide' learrying the circuit breaker, and va governor-adapted to be rotated by the shaft and n operatively connected to both'the Slide. and theoan'iA so, `as

55 to-r movel the slide-laterally' outwardf and to f20.-1eaf spring fora circuit breakerghav-T ing 21a-substantially straightfportion previded Witha-loop andra;curved-portionin theform E nyl whereof, I hereuntoalir permits the spring to yield longitudinally.; i, 

